I've just enabled PicLens on this journal for certain photos. If you aren't using PicLens, I highly recommend installing the FireFox plug-in; it's a beautiful way to look at images on the web. Pretty much all photo sharing sites support it now, including Flickr, Facebook, Picasa, and SmugMug.
I'm using WP PicLens Plus and a Photo Mechanic export setting to get all of this to work. Currently, all of the image display code is just inlined into the body of the Wordpress entry. I know that's not ideal, but it was the best I could do without having to actually code. ;)

Here's a demo of PicLens, using some photos I took of Jack last week. Obviously, you must have the PicLens plug-in installed to see it work.